- Chenoweth
- Cherry Grove
- Cherry Heights
- Cherryville
- Cheshire
- Chiefs Island
- Chiloquin
- China Town
- Chitwood
- Christmas Valley
- City of the Dalles
- Clackamas
- Clackamas Heights
- Clarke
- Clarkes
- Clarksville
- Clarno
- Clatskanie
- Clatskanie Heights
- Clear Creek
- Clear Lake
- Clearwater
- Clem
- Cleveland
- Clifton
- Climax
- Cloverdale
- Cloverdale
- Cloverdale
- Cluster